All Clinical Trials in Canada

Respiratory muscle dysfunction is highly prevalent in patients with prolonged weaning from mechanical ventilation and is strongly associated with weaning failure. Efforts to strengthen the respiratory muscles, aimed at reversing or minimizing the impact of respiratory muscle weakness on clinical outcomes, have generally focused on the diaphragm with specific inspiratory muscle training (IMT) exercises. However, the effectiveness of these exercises and impact on clinical outcomes are not current practice in the majority of ICUs, as they are hardly feasible in ICU patients who often cannot be disconnected from the ventilator and cannot fully cooperate. Promising results have been published concerning non-respiratory training techniques, which can also target the accessory muscles, particularly important in the presence of increased load to the respiratory system, as in the case of the weaning phase. These non-respiratory training techniques would have the advantage of not entailing disconnection of the patient from the ventilator. In particular, in healthy subjects, a quasi-isometric neck contraction, called neck flexion, appeared to generate greater or comparable recruitment of some principal and accessory muscles of respiration, when compared to conventional IMT. However, this has not been studied in patients requiring prolonged mechanical ventilation, for whom IMT with threshold loading devices remains the primary recommended rehabilitation strategy. Therefore, the primary aim of the investigators is to assess the feasibility, tolerability, and safety of neck flexion and to compare them with IMT technique in patients with difficult and prolonged weaning from mechanical ventilation. Secondary aims are: i) to characterize which respiratory muscles are recruited and their level of activation at different levels of ventilatory assistance and ii) to assess which respiratory muscles are recruited and their level of activation during the two techniques and to compare these findings. The hypothesis of the investigators is that neck flexion will be feasible (more than conventional IMT), well tolerated, and safe in patients with difficult and prolonged weaning. The investigators also hypothesize that, reducing the level of assistance and during unassisted breathing, a progressively increasing activation of the diaphragm, neck and trunk respiratory muscles, reflecting increased ventilatory load, will be fund. Finally, the hypothesis of the investigators is that the level of muscle activation/recruitment during neck flexion will be comparable or even greater to that occurring during IMT, as found in healthy subjects. Finding a new and highly feasible rehabilitative technique, able to recruit and train the respiratory muscles (including accessory muscles), will have the potential to promote patients' weaning and improve all related clinical outcomes, and therefore to dramatically shift the paradigm about the role of rehabilitation in ICU. Read Less

A core symptom of body dysmorphic disorder (BDD) is perceptual distortions for appearance, which contributes to poor insight and delusionality, limits engagement in treatment, and puts individuals at risk for relapse. Results from this study will provide a comprehensive mechanistic model of brain, behavioral, and emotional contributors to abnormal perceptual processing, as well as how malleable it is with visual modulation techniques. This will lay the groundwork for next-step translational perceptual retraining approaches. Read Less

As medical students rotate through different hospital sites as part of their studies, the students are frequently exposed to new and unfamiliar environments. This can cause anxiety in some students, and can potentially result in students becoming lost, and arriving late to their activities. To prevent this, students are currently provided with instructions in the form of written directions, photographs, maps, and/or 2-dimensional videos. In this study, the investigators will test if immersive 360-degree virtual reality videos (videos shown using a headset/goggles that allow the wearer to experience the video as though they were actually there), are better at teaching medical students how to navigate the hospital and find new locations, compared to normal, 2-dimensional video instructions. Medical students will be asked to find their way to a new location within the hospital, after being given instructions using either 2-dimensional (standard) video or 360-degree virtual reality video. The investigators will measure how long it takes students to find the new location, and how often the students get lost or confused along the way. If successful, the investigators believe that this new method of teaching will help students to get around in new places more easily and lessen student anxiety. This will also increase knowledge related to 360-degree virtual reality video for teaching medical students. Read Less

In this study, we will assess the efficacy and safety of a reduced dose of thrombolytic therapy given in addition to low-molecular-weight heparin in patients with intermediate-high-risk acute pulmonary embolism. Half of participants will receive thrombolytic treatment, while the other half will receive a placebo. Read Less

Benign prostatic hyperplasia (BPH) is one of the most common performed surgical procedures in urology. Over the past few decades there have been an increasing development of newer surgical treatment options. Additionally, the outcome parameters for BPH treatments have been standardized. While data are available for the initial pivotal studies, post-market release data are lacking. Under the umbrella of uCARE, we have started a prospective, ongoing international registry for recording demographics and outcomes for patients undergoing surgical treatments for BPH. Read Less

The body's biological functions follow a circadian rhythm, meaning that individual biological functions in the body change over a 24-hour cycle. There is evidence suggesting that the body and cancer cells may react differently to anti-cancer treatment based on the time of day they are exposed. In fact, researchers have already found that giving anti-cancer treatments at a particular time of the day works better in rectal and ovarian cancer. Temozolomide (TMZ) is a chemotherapy pill/capsule commonly given to patients with newly diagnosed glioblastoma after brain surgery and radiation treatment. However, there is no current standard for what time of day TMZ should be taken for the treatment of glioblastoma. In the current study, participants are randomly placed in one of two groups: a morning group and an evening group. Based on this group placement, participants are instructed to either take their TMZ in the morning or in the evening and record the date and time they take their TMZ in a pill diary. The primary goal of the study is to understand if taking TMZ at a prescribed time of day (morning/evening) is feasible in adults with glioblastoma. This is a pilot trial, and the investigators hypothesize that it will be feasible for glioblastoma patients to take TMZ at the prescribed time of day. The secondary goals of this study are to evaluate participant recruitment, safety, health-related quality of life, and changes in condition over time. This pilot study will help investigators plan for a larger, pragmatic randomized clinical trial in the future. Read Less

The goal of this feasibility sham-controlled randomized trial is to assess the feasibility of studying non-invasive neuromodulation techniques, specifically transcutaneous vagal nerve stimulation (tVNS) and transcutaneous electrical nerve stimulation (TENS) of the trigeminal nerve to alleviate dyspnea in patients with chronic pulmonary disease. The main question it aims to answer is: Despite challenges in dyspnea generation and measurement, could non-invasive neuromodulation be reliably studied in chronic obstructive pulmonary disease (COPD) with severe dyspnea? Researchers will compare tVNS and trigeminal TENS to a sham (where the device is applied, but without stimulation) in order to see if non-invasive neuromodulation could relieve dyspnea. At the time of rehabilitation pre-assessment, participants routinely undergo a baseline maximal Cardiopulmonary Exercise Testing (CPET) on ergocycle to measure VO2max with repetitive assessments of the Borg scale and continuous monitoring of vital signs (oxygen saturation, heart rate, blood pressure, respiratory rate) throughout the test. Spirometry and symptom questionnaires (CAT score) are also routinely measured. In two dedicated study visits conducted 2 weeks apart from each other, n=8 participants will perform a submaximal constant workrate (CRW) at 80% workload of the VO2 max, either with cervical tVNS (n=4) or trigeminal TENS (n=4). In a cross-over design, both patient groups will undergo sham and active treatment of the neuromodulation technique in a randomly assigned number. Read Less

The primary aim of this trial is to evaluate if the NGAGE tool improves care engagement in family members of ICU patients. The secondary objectives are to assess if the NGAGE tool improves communication, care satisfaction, psychological symptoms, and quality of life in family members of ICU patients. The NGAGE trial is a stepped wedge cluster randomized trial of 6 Canadian adult ICUs, involving 194 family members. A family member will be considered anyone with a biological, emotional, or legal relationship with the patient and whom the patient wishes to be involved in their care. There will be random and sequential crossover of clusters from control (phase 1) to intervention (phase 2) until all clusters are exposed. The intervention group will have access to the NGAGE tool, which has modules to Learn, Engage, and Report. "Engage" allows the family member to indicate their desired engagement activity, which is then transmitted to the treating healthcare team to provide the requested activity. "Learn" contains educational capsules about the ICU environment and information about care participation. "Report" allows the family member to provide real-time feedback to the healthcare team. The primary endpoint is the FAMily Engagement (FAME) score within 1 week of ICU discharge. Secondary endpoints are family-centered outcomes, including communication quality, satisfaction, and mental health (anxiety and depression) scores within 1 week of ICU discharge, and quality of life and mental health (anxiety, depression, and post-traumatic distress symptoms) at 6 months. The mean difference of the validated FAME score, a continuous variable, will be compared between groups. Read Less

This is a randomized clinical trial comparing the outcomes of short-course chemoradiation consisting in stereotactic boost to the gross tumor and de-esclalated chemoradiation to the elective neck in human papilloma associated oropharynx cancer vs. the current standard 7-week course chemoradiation. Read Less

Chemotherapy-induced nausea and vomiting (CINV) are among the most bothersome symptoms during cancer treatment according to children and their parents. Most children receiving highly emetogenic chemotherapy (HEC), including those receiving hematopoietic stem cell transplant (HSCT) conditioning, experience CIV despite receiving antiemetic prophylaxis. Olanzapine improves CINV control in adult cancer patients, has a track record of safe use in children with psychiatric illness, does not interact with chemotherapy and is inexpensive. We hypothesize that the addition of olanzapine to standard antiemetics will improve chemotherapy-induced vomiting (CIV) control in children receiving highly emetogenic chemotherapy Read Less

The primary objectives of this trial are to: * Characterize the safety and tolerability of TEV-56278 * Determine the Recommended Phase 2 Dose (RP2D) * Evaluate antitumor activity of TEV-56278 * Determine the safety and tolerability of TEV-56278 in combination with pembrolizumab * Determine a RP2D of TEV-56278 in combination with pembrolizumab The secondary objectives of this trial are to: * Characterize the serum pharmacokinetics of TEV-56278 * Evaluate the antitumor activity of TEV-56278 * Determine the safety and tolerability of TEV-56278 * Evaluate other measures of antitumor activity of TEV-56278 * Evaluate anti-tumor activity Participants will be treated up to 12 months with a follow-up period of up to 12 months after last infusion. The total duration of the trial will be up to 25 months for individual participants. Read Less

This clinical study is a parallel, prospective observational single-centre trial in patients presenting with 5 to 30 brain metastases. Patients to receive either stereotactic radiosurgery (SRS) alone or SRS plus whole brain radiation (WBRT) will be enrolled. Read Less